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How to Purge a Husqvarna Lawnmower Transmission

A lawn mower's transmission can suffer when air gets trapped in the hydraulics. This problem often occurs when the mower is shipped, so it's often a good practice to purge the mower's transmission prior to the initial use. You can get your Husqvarna lawn mower into proper operating condition following a transmission purging regardless of your familiarity with this troubleshooting routine.

Position the Husqvarna mower on a level surface. Ensure the engine has been shut off.

Pull the mower's transport lever out.

Turn the engine on and set the emergency brake.

  • A lawn mower's transmission can suffer when air gets trapped in the hydraulics.

Put the throttle lever into its "Slow" setting. The throttle lever in on the left side of the driver's seat. Ensure the mower is in "Neutral."

Push the motion control lever on the dashboard to the full forward position. Leave it in this position for five seconds.

Pull the Husqvarna's motion control lever to the full reverse position. Keep the control lever in this position for five seconds.

  • Put the throttle lever into its "Slow" setting.
  • Push the motion control lever on the dashboard to the full forward position.

Repeat the move from full reverse to full forward position on the motion control lever three separate times, keeping the lever in each position for five seconds. This will purge the air from the Husqvarna's hydraulics.

Turn off the Husqvarna's engine and push the transport lever back in.

Purge A Husqvarna Lawn Mower Transmission

Raise the Husqvarna lawn mower's attachment lift lever on the left side of the operator's seat to the highest position. Walk to the rear of the lawn mower, and pull the freewheel control outward and down, locking the transmission in the disengaged position. Push the lawn mower to a flat, open area of your lawn. Sit in the operator's seat. Push the throttle control on the left side of the dash upward to the fast setting, and pull out the choke below it to engage it. Insert and turn the ignition key to the right, and immediately release it when the engine starts. Place the motion control lever on the right side of the seat in the center, neutral position. Press and release the brake/clutch pedal slowly. Move the motion control lever upward to "Forward" for five seconds. Repeat this procedure an additional three times. Move the motion control lever to "Reverse," and drive about 5 feet. Repeat the forward-reverse-neutral process three additional times.

  • Repeat the move from full reverse to full forward position on the motion control lever three separate times, keeping the lever in each position for five seconds.
  • Raise the Husqvarna lawn mower's attachment lift lever on the left side of the operator's seat to the highest position.
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